This is something I just noticed... hello.hs: module Main(main) where main = putStr "Hello world!\n" hello.c: #include int main(void) { printf("Hello world!\n"); return 0; } [abe@shiva:~/src/test] $ ghc hello.hs -o hello_hs [abe@shiva:~/src/test] $ gcc hello.c -o hello_c [abe@shiva:~/src/test] $ ls -l hello_* -rwxr-xr-x 1 abe engy 13712 Jul 18 11:34 hello_c -rwxr-xr-x 1 abe engy 299900 Jul 18 11:33 hello_hs Why is the binary made by ghc 20 times bigger than the one made by gcc? Abe